1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/* This file is part of the Zebra server.
Copyright (C) Index Data
Zebra is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <assert.h>
#include <yaz/log.h>
#include <idzebra/recgrs.h>
struct sgml_getc_info {
char *buf;
int buf_size;
int size;
int off;
struct ZebraRecStream *stream;
off_t moffset;
WRBUF wrbuf;
};
int sgml_getc (void *clientData)
{
struct sgml_getc_info *p = (struct sgml_getc_info *) clientData;
int res;
if (p->off < p->size)
return p->buf[(p->off)++];
if (p->size < p->buf_size)
return 0;
p->moffset += p->off;
p->off = 0;
p->size = 0;
res = p->stream->readf(p->stream, p->buf, p->buf_size);
if (res > 0)
{
p->size += res;
return p->buf[(p->off)++];
}
return 0;
}
static data1_node *grs_read_sgml (struct grs_read_info *p)
{
struct sgml_getc_info *sgi = (struct sgml_getc_info *) p->clientData;
data1_node *node;
int res;
sgi->moffset = p->stream->tellf(p->stream);
sgi->stream = p->stream;
sgi->off = 0;
sgi->size = 0;
res = sgi->stream->readf(sgi->stream, sgi->buf, sgi->buf_size);
if (res > 0)
sgi->size += res;
else
return 0;
node = data1_read_nodex(p->dh, p->mem, sgml_getc, sgi, sgi->wrbuf);
if (node && p->stream->endf)
{
off_t end_offset = sgi->moffset + sgi->off;
p->stream->endf(sgi->stream, &end_offset);
}
return node;
}
static void *grs_init_sgml(Res res, RecType recType)
{
struct sgml_getc_info *p = (struct sgml_getc_info *) xmalloc (sizeof(*p));
p->buf_size = 512;
p->buf = xmalloc (p->buf_size);
p->wrbuf = wrbuf_alloc();
return p;
}
static ZEBRA_RES grs_config_sgml(void *clientData, Res res, const char *args)
{
return ZEBRA_OK;
}
static void grs_destroy_sgml(void *clientData)
{
struct sgml_getc_info *p = (struct sgml_getc_info *) clientData;
wrbuf_destroy(p->wrbuf);
xfree(p->buf);
xfree(p);
}
static int grs_extract_sgml(void *clientData, struct recExtractCtrl *ctrl)
{
return zebra_grs_extract(clientData, ctrl, grs_read_sgml);
}
static int grs_retrieve_sgml(void *clientData, struct recRetrieveCtrl *ctrl)
{
return zebra_grs_retrieve(clientData, ctrl, grs_read_sgml);
}
static struct recType grs_type_sgml =
{
0,
"grs.sgml",
grs_init_sgml,
grs_config_sgml,
grs_destroy_sgml,
grs_extract_sgml,
grs_retrieve_sgml
};
RecType
#if IDZEBRA_STATIC_GRS_SGML
idzebra_filter_grs_sgml
#else
idzebra_filter
#endif
[] = {
&grs_type_sgml,
0,
};
/*
* Local variables:
* c-basic-offset: 4
* c-file-style: "Stroustrup"
* indent-tabs-mode: nil
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/
|
